Headway Definition

hĕdwā
noun
Forward motion.
Webster's New World
Progress or success in work, etc.
Webster's New World
Webster's New World
The clear vertical space beneath a ceiling or archway; clearance.
American Heritage
The difference in time or distance between two trains, ships, etc. traveling in the same direction over the same course.
Webster's New World

Other Word Forms of Headway

Noun

Singular:
headway
Plural:
headways

Origin of Headway

  • Partly from Middle English headway, from Old English hēafodweġ (“head-road, main-road”), equivalent to head- +‎ way; partly as a shortening of ahead-way, the source of the nautical sense.

    From Wiktionary

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